I want to know how to disable Geo-Location in Iron (for privacy reasons), as I was doing in Firefox (through "about:config")...

The thing is that I am using a VPN with servers in the UK, and while my IP is shown as in the UK, many websites display my country language (not english), and Google displays my country version, instead of Google.com, or Google UK.

How to disable this in Iron?

Also, I would like to know how to change this settings in order to saty provate when surfing, as per the JonDo Anonymity Test: